import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

public class ListStreamTest {
    public static void main(String[] args) {
        List<Map<String,Object>> testList = new ArrayList<>();
         List<String> storeId = testList.stream().map(shop -> shop.get("storeId").toString()).collect(Collectors.toList());
        System.out.println(storeId);
    }
}
